[GCM] Make GCM API not work in incognito mode

chrome/browser/services/gcm/gcm_profile_service.h

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_SERVICES_GCM_GCM_PROFILE_SERVICE_H_
 #define CHROME_BROWSER_SERVICES_GCM_GCM_PROFILE_SERVICE_H_
 
 #include <map>
 
 #include "base/basictypes.h"
@@ skipping 37 matching lines @@
 
   // For testing purpose.
   class TestingDelegate {
    public:
     virtual GCMEventRouter* GetEventRouter() const = 0;
     virtual void CheckInFinished(const GCMClient::CheckinInfo& checkin_info,
                                  GCMClient::Result result) = 0;
   };
 
   // Returns true if the GCM support is enabled.
-  static bool IsGCMEnabled();
+  static bool IsGCMEnabled(Profile* profile);
 
   // Register profile-specific prefs for GCM.
   static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
 
   explicit GCMProfileService(Profile* profile);
   // Constructor for testing purpose.
   GCMProfileService(Profile* profile, TestingDelegate* testing_delegate);
   virtual ~GCMProfileService();
 
   // Registers |sender_id| for an app. A registration ID will be returned by
@@ skipping 136 matching lines @@
 
   // Used to pass a weak pointer to the IO worker.
   base::WeakPtrFactory<GCMProfileService> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GCMProfileService);
 };
 
 }  // namespace gcm
 
 #endif  // CHROME_BROWSER_SERVICES_GCM_GCM_PROFILE_SERVICE_H_